Of course, it is good to assign a fixed amount from our discretionary income into regular buying of bitcoin through DCA weekly or monthly but sometimes this might not be possible because it is not of our own control but based on our expenses that arises in different weeks. If you observe sometimes we might spend more than what we budget for the week due to increase in our needs for that week and sometimes we might spend less due to decrease in our weekly expenses.

In such scenarios the investor might choose to invest $50 weekly but when the expenses of his needs increases, he can cut down his DCA amount to $40 for that week and if his expenses on another week decreases, he might increase his DCA amount to $60. The most important thing is that the investor did not stop buying but continues buying no matter how small he could buy in a week.

Also an investor might have an increament in his monthly income, or has an additional means of income along the line of his bitcoin accumulation journey, he will increase the amount that he is using to DCA in order for him to buy bitcoin more aggressively as long as he did not over do it.

There can also be a case where an investor did not have any discretionary income on that week because of too much responsibility for the week and his discretionary income was exhausted, such investor don't need to worry that he did not buy bitcoin for that week and he will just hodli and buy the next week. Another scenario is if the investor loses his job at that moment, he is to pause his bitcoin accumulation until he gets a new job while he feeds with his emergency funds and reserve for the main time till he gets a new job and continue accumulating. If you have the funds to keep on buying don't stop just keep on buying.